Configure builds and Dockerfile to include plugins with the distribution

Signed-off-by: Mustafa Kara <[email protected]>

Makefile

@@ -82,6 +82,8 @@ GITHUB_ORG                   := mattermost
 # Most probably the name of the repo
 GITHUB_REPO                  := ${APP_NAME}
 
+# Plugins in the repository to be included in the releases and docker images
+OPS_TOOL_PLUGINS             ?= bash
 # Command line arguments of ops tool when executed
 OPS_TOOL_ARGS                ?= -c config/config.sample.yaml
 
@@ -116,6 +118,13 @@ AT_0 := @
 AT_1 :=
 AT = $(AT_$(VERBOSE))
 
+# ====================================================================================
+# Functions
+define BuildPlugin
+	$(AT)$(INFO) Building ${BLUE}$(1)${CNone} plugin.
+	$(AT)cd plugin/$(1);make build || ${FAIL}
+endef
+
 # ====================================================================================
 # Targets
 
@@ -249,7 +258,7 @@ docker-login: ## to login to a container registry
 	$(AT) echo "${DOCKER_PASSWORD}" | $(DOCKER) login --password-stdin -u ${DOCKER_USER} $(DOCKER_REGISTRY) || ${FAIL}
 	@$(OK) Dockerd login to container registry ${DOCKER_REGISTRY}...
 
-go-build: $(GO_BUILD_PLATFORMS_ARTIFACTS) ## to build binaries
+go-build: $(GO_BUILD_PLATFORMS_ARTIFACTS) go-build-plugins ## to build binaries
 
 .PHONY: go-build
 go-build/%:
@@ -262,13 +271,16 @@ go-build/%:
 	export GOARCH="$${platform#*-}"; \
 	echo export GOOS=$${GOOS}; \
 	echo export GOARCH=$${GOARCH}; \
-	CGO_ENABLED=0 \
 	$(GO) build ${GO_BUILD_OPTS} \
 	-ldflags '${GO_LDFLAGS}' \
 	-o ${GO_OUT_BIN_DIR}/$* \
 	${CONFIG_APP_CODE} || ${FAIL}
 	@$(OK) go build $*
 
+.PHONY: go-build-plugins
+go-build-plugins:
+	$(foreach plugin, $(OPS_TOOL_PLUGINS), $(call BuildPlugin,$(plugin)))
+
 .PHONY: go-build-docker
 go-build-docker: # to build binaries under a controlled docker dedicated go container using DOCKER_IMAGE_GO
 	@$(INFO) go build docker

build/Dockerfile

@@ -1,6 +1,7 @@
-# This dockerfile is used to build Mattermost ops-tool
+# This dockerfile is used to build Mattermost ops-tool will all plugins.
+# See makefile to configure plugins
 # A multi stage build, with golang used as a builder
-# and gcr.io/distroless/static as runner
+# and dockerhub.io/debian:bullseye-20220801 as runner
 ARG GO_IMAGE=golang:1.18@sha256:90c06f42c1aa2b6b96441c0e6192aff48815cf5e7950cd661ed316fdbfb06ed4
 # hadolint ignore=DL3006
 FROM ${GO_IMAGE} as builder
@@ -13,10 +14,10 @@ COPY . /src
 WORKDIR /src
 RUN make go-build
 
-# Shrink final image since we only need the ops-tool binary
-# and use distroless container image as runner for security
-FROM gcr.io/distroless/static@sha256:d6fa9db9548b5772860fecddb11d84f9ebd7e0321c0cb3c02870402680cc315f as runner
+# Cause of bash plugins we need to execute bash and shell commands.
+FROM docker.io/debian:bullseye-20220801@sha256:82bab30ed448b8e2509aabe21f40f0607d905b7fd0dec72802627a20274eba55 as runner
 COPY --from=builder /src/dist/ops_tool-linux-amd64 /opt/ops-tool/bin/ops-tool
+COPY --from=builder /src/dist/plugins /opt/ops-tool/plugins
 
 # We should refrain from running as privileged user
 # Run as UID for nobody

config/config.sample.yaml

@@ -4,15 +4,15 @@ listen: "0.0.0.0:8080"
 base_url: "https://op-tools-address.com"
 plugins:
   - name: bash_useful
-    file: plugins/bash.so
+    file: dist/plugins/bash.so
     config:
       files:
         - commands/gitlab/gitlab.yaml
         - commands/docker/docker.yaml
         - commands/k8s/k8s.yaml
         - commands/release/release.yaml
   - name: bash_fun
-    file: plugins/bash.so
+    file: dist/plugins/bash.so
     config:
       files:
         - commands/helloworld/helloworld.yaml

plugin/bash/Makefile

@@ -0,0 +1,83 @@
+# ====================================================================================
+# Variables
+
+## General Variables
+APP_NAME    := ops-tool-bash-plugin
+
+# Get current date and format like: 2022-04-27 11:32
+BUILD_DATE  := $(shell date +%Y-%m-%d\ %H:%M)
+
+## General Configuration Variables
+# We don't need make's built-in rules.
+MAKEFLAGS     += --no-builtin-rules
+# Be pedantic about undefined variables.
+MAKEFLAGS     += --warn-undefined-variables
+# Set help as default target
+.DEFAULT_GOAL := help
+
+# App Code location
+CONFIG_APP_CODE         += ./
+
+## Go Variables
+# Go executable
+GO                           := $(shell which go)
+# Extract GO version from go.mod file
+GO_VERSION                   ?= $(shell grep -E '^go' go.mod | awk {'print $$2'})
+# Build options
+GO_BUILD_OPTS                := -mod=readonly -trimpath -buildmode=plugin
+GO_TEST_OPTS                 := -mod=readonly -failfast -race
+# Plugin generation dir
+GO_OUT_SO_PATH               := ../../dist/plugins/bash.so
+
+# ====================================================================================
+# Colors
+
+BLUE   := $(shell printf "\033[34m")
+YELLOW := $(shell printf "\033[33m")
+RED    := $(shell printf "\033[31m")
+GREEN  := $(shell printf "\033[32m")
+CYAN   := $(shell printf "\033[36m")
+CNone  := $(shell printf "\033[0m")
+
+# ====================================================================================
+# Logger
+
+TIME_LONG	= `date +%Y-%m-%d' '%H:%M:%S`
+TIME_SHORT	= `date +%H:%M:%S`
+TIME		= $(TIME_SHORT)
+
+INFO = echo ${TIME} ${BLUE}[ .. ]${CNone}
+WARN = echo ${TIME} ${YELLOW}[WARN]${CNone}
+ERR  = echo ${TIME} ${RED}[FAIL]${CNone}
+OK   = echo ${TIME} ${GREEN}[ OK ]${CNone}
+FAIL = (echo ${TIME} ${RED}[FAIL]${CNone} && false)
+
+# ====================================================================================
+# Verbosity control hack
+
+VERBOSE ?= 0
+AT_0 := @
+AT_1 :=
+AT = $(AT_$(VERBOSE))
+
+# ====================================================================================
+# Targets
+
+help: ## to get help
+	@echo "Usage:"
+	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) |\
+	awk 'BEGIN {FS = ":.*?## "}; {printf "make ${CYAN}%-30s${CNone} %s\n", $$1, $$2}'
+
+.PHONY: build
+build: ## to build plugin
+	@$(INFO) go build 
+	$(AT)$(GO) build ${GO_BUILD_OPTS} \
+	-o ${GO_OUT_SO_PATH} \
+	${CONFIG_APP_CODE} || ${FAIL}
+	@$(OK) go build $*
+
+.PHONY: test
+test: ## to test plugin
+	@$(INFO) testing...
+	$(AT)$(GO) test ${GO_TEST_OPTS} ./...  || ${FAIL}
+	@$(OK) testing